Alert archive / Minnesota / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 202, NWS Twin Cities, MN

September 12, 1994Pope County, Stearns County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Sep 12, 1994, 12:41 PM CDT for Pope County, Stearns County, Minnesota. It was in force for 49 min.

The area

The counties it named.

The facts

Issued
Sep 12, 1994, 12:41 PM CDT (17:41 UTC)
Expired
Sep 12, 1994, 1:30 PM CDT
In force
49 min
Issued by
NWS Twin Cities, MN
Area
Whole counties

Counties Pope County, MN, Stearns County, MN

The nearest sounding before it

Minneapolis, MN (KSTC), launched 12:00Z, 5.7 hours before the alert went out and 138 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Minneapolis, MN at 12:00Z on 1994-09-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 199 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 12:00Z on 1994-09-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 54 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
199 J/kg
Mixed-layer CIN
-238 J/kg
Mixed-layer LCL
828 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
54 m²/s²
0-3 km storm-relative helicity
109 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KSTC 121741 RRA
SVRSTC
MNC121-145-121830-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST CLOUD MINNESOTA
1241 PM CDT MON SEP 12 1994
 
THE NATIONAL WEATHER SERVICE IN ST CLOUD MINNESOTA  HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  130 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN CENTRAL MINNESOTA
 
   ...EASTERN POPE COUNTY...WESTERN STEARNS COUNTY
 
AT 1230 PM RADAR INDICATED A SEVERE THUNDERSTORM NEAR THE CITY OF
TERRACE IN EASTERN POPE COUNTY. THIS STORM IS MOVING TO THE EAST AT 15
MPH. CITIES IN THE PATH OF THIS STORM INCLUDE
TERRACE...SEDAN...BROOTEN... BELGRADE...AND LAKE HENRY.
 
 
 
IF YOU OUTSIDE IN THE OPEN...YOU SHOULD MOVEH TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT STAY AWAY FROM WINDOWS.
DO NOT USE ELECTRICAL APPLIANCES OR THE TELEPHONE UNLESS IT IS
AN EMERGENCY.
 
 
PARKIN

Nearby

Severe Thunderstorm Warnings in Minnesota, 1994Every severe thunderstorm warning in 1994

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.